Continuous coating method for coating material with insufficient fluidity

A continuous coating method for uniformly coating a coating material on a substrate, comprising:

• arranging a pick-up roller, a coating roller, a metering roller and a doctor bar parallel to each other such that the pick-up roller is disposed between the coating roller and the metering roller and the doctor bar is located above the pick-up roller, said coating roller being located in proximity to the substrate,
• rotating the pick-up roller in a direction to pick-up the coating material through a gap between the pick-up roller and the metering roller,
• rotating the metering roller in a same direction as the pick-up roller at a nip of these rollers, and rotating the coating roller in a reverse direction with respect to the pick-up roller at a nip of these rollers, said substrate travelling in a reverse direction with respect to the coating roller at a nip thereof,
• providing the coating material to the pick-up roller so that the pick-up roller picks up the coating material through the gap between the pick-up roller and the metering roller, and
• forming a meniscus of the coating material between the pick-up roller and the metering roller while the pick-up roller and the metering roller are rotating, to thereby form a uniform coating film on the pick-up roller, which is transferred to the substrate through the coating roller.